Consider the following reduction processes : Al^{3+}+3 e^{-} \to Al(s), E^0=-1.66 V Fe^{3+}+e^{-} \to Fe^{2+}, E^0=+0.77 V Co^{3+}+e^{-} \to Co^{2+}, E^0=+1.81 V Cr^{3+}+3 e^{-} \to Cr(s), E^0=-0.74 V The tendency to act as reducing agent decreases in the order : [22 Jan 2026 Shift 2]

Correct Answer is : Al>Cr>Fe2+>Co2+